EVERYONE THAT IS INTERESTED IN CRYPTO LOOK AT THIS TWEET!
https://twitter.com/DomSchiener/status/858379721029111808
Great.
What does conf. rate actually mean? What is the reason for confirming only 70% of transactions? Is it good or bad?
It's not really a good or bad. It's just a limitation of how our universe and physic works. (limitation of where the speed of light is finite).
Even in bitcoin, they do not have 100% confirmation rate, the transactions get removed from mem pool after a certain time.
They sort this by prioritizing the highest paid fees first..
In IOTA it is prioritized by having the highest POW.